Appeal No. 2003-0819
Application No. 09/872,928
tetraalkylpiperidinyl compound having a high molecular weight.
(Column 1, lines 9-37.) The solid solution composition is said
to be an “excellent stabilizer for polymeric materials,” such as
epoxy resins. (Abstract; column 13, lines 7-36.) Malik further
teaches that other antioxidants including “benzofuran-2-ones,
indolin-2-ones and sterically hindered phenols, sulphur and
phosphorous containing compounds and mixtures thereof,” may be
added to the solid solution stabilizer composition. (Column 16,
lines 40-47.) Preferred phosphorus containing co-stabilizers
are said to include certain phosphite and phosphonite compounds.
(Column 17, lines 6-12.) Like Ertl, Malik teaches that the
solid solution is suitable in powder coating compositions.
(Column 17, lines 47-50.)
In a similar fashion, Valet describes a coating composition
(e.g., a powder coating) comprising: (A) a binder based on an
organic polymer (e.g., epoxy resin or functional acrylate resin
and a crosslinking agent); and, as a stabilizer against damage
by light, heat, and oxygen, (B) a 2-(2’hydroxyphenyl)-1,3-
pyrimidine derivative. (Column 1, lines 7-12; column 1, line 39
to column 3, line 26; column 8, lines 46-63; column 12, lines
45-48; column 13, lines 6-12.) Valet further teaches that other
stabilizers such as phosphates, phosphonites, and benzofuranones
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